蓝马羚

而这时与蓝马羚相争的其他动物正好被引入到它们的栖息地。

This is when competing livestock were introduced into their habitat .

蓝马羚数量从大约2千年前开始明显下降。

The population began to decline noticeably around 2000 years ago .

到了18世纪，蓝马羚已经变得相当稀少。

Bluebucks had become rather rare by the 18th century .

在人类的足迹到达南非草原之前，非洲狮、鬣狗和豹是蓝马羚的最大捕食者。

African lions , hyenas , and leopards hunted them before humans arrived .

最后一只蓝马羚在1799年被射杀。

The last known bluebuck was shot in 1799 .

蓝马羚是南非特有的动物。

It was native to southern Africa .

当今仅存5个蓝马羚头颅，它们被装裱好，分别收藏于奥地利、法国、荷兰和瑞典的博物馆。其中瑞典拥有两个蓝马羚的头颅。

Five mounted heads are displayed at different museums in Europe - one each in Austria , France , and Amsterdam , and two in Sweden .

捕食者的捕杀、气候变化、人类猎杀、疾病，甚至是另外一些出现在它们领土上的动物，例如绵羊，都或多或少地造成了蓝马羚的灭绝。

Predators , climate change , hunting , disease , and even the presence of animals , such as sheep , in their territory may have contributed to their extinction .